Watch LaterAdded 02:28 事物數學 How to visualize one part per million – Kim Preshoff + The TED-Ed Community
Watch LaterAdded 05:55 神奇自然 How we can detect pretty much anything – Hélène Morlon and Anna Papadopoulou
Watch LaterAdded 06:25 TED青年 How whales breathe, communicate … and fart with their faces – Joy Reidenberg